CA1116774A - Poly (phenylene sulfide) resin coating composition - Google Patents
Poly (phenylene sulfide) resin coating compositionInfo
- Publication number
- CA1116774A CA1116774A CA000295370A CA295370A CA1116774A CA 1116774 A CA1116774 A CA 1116774A CA 000295370 A CA000295370 A CA 000295370A CA 295370 A CA295370 A CA 295370A CA 1116774 A CA1116774 A CA 1116774A
- Authority
- CA
- Canada
- Prior art keywords
- powder
- poly
- phenylene sulfide
- resin
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D181/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon only; Coating compositions based on polysulfones; Coating compositions based on derivatives of such polymers
- C09D181/02—Polythioethers; Polythioether-ethers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Title of the Invention POLY(PHENYLENE SULFIDE) RESIN COATING COMPOSITION
Abstract of the Disclosure A composition comprising a poly(phenylene sulfide) resin powder and an aluminum oxide powder of colloidal size.
The composition is useful as a powder coating composition.
The composition exhibits improved adhesion to a substrate, even in hot water.
Abstract of the Disclosure A composition comprising a poly(phenylene sulfide) resin powder and an aluminum oxide powder of colloidal size.
The composition is useful as a powder coating composition.
The composition exhibits improved adhesion to a substrate, even in hot water.
Description
~l16774 This invention relates to a composition comprising a mixture of a poly(phenylene sulfide) resin powder and an ~luminum oxide powder, and more specifically~ to a powder coating composition comprising a poly(phenylene sulfide) resin powder and an aluminum oxide powder of colloidal sizeO
Fbly(phenylene sulfide) resin has recently been much studied for its capacity of forming coated films havin~
good thermal stability, chemical resistance and mechanical properties. Coated films of the poly(phenylene sulfide) re5in are generally con9idered to have better adhesion to ~ubstrates than those of other resins. In practical appli-cation, however, their adhesion is not sufficient, and particularly in hot water, tends to decrease markedly.
A general method known to improve the adhesion of re~inous coated ~ilms involves blendin~ or OEaftcopolymerizing a compound having a polar group such as an epoxy resin or acrylic acid with a resin. Since a paint film of the poly(phenylene sulfide) resin requires high temperatures and lon~ periods of ~ime for baking, when a paint of the poly(phenylene sulfide) modified by this method is used, the polar organic compound blended or grafted with it will decompose during baking at high temperatures. It is extremely difficult therefore to improve the adhesion of the poly(phePylene sulfide) by this general method. -~
It is an object of this invention therefore to provide a poly(phenylene sulfide) resin composition comprising a powdery poly(phenylene sulfide) resin and an aluminum oxide powder of colloidal size, which gives coated films having superior adhesion even in hot water~
1~ 6~i~9~
Thus, the invention provides a poly(phenylene sulfide) resin composition comprising 100 parts by weight of a poly-(phenylene sulfide) resin powder and 0.05 to 10 parts by weight of an aluminum oxide powder of colloidal size having a particle diameter of less than 100 m~.
-2a-6~7~
The poly(phenylene sulfide) is a resin whose main chain is composed mainly of the recurring unit - ~ -S- in which the phenylene group is optionally substituted by halogen or an alkyl group with 1 to 12 carbon atoms. The resin may have a partially oxidized, branched or cross-linked structureO 'rhe poly(phenylene sulfide) resin and a method for its production are disclosed, for example, in ~T. S. Patent 3,35~,129~ To be suitable as a paint, the resin generally has a melting point of 200 to 350C, preferably 250 to 300C, and a mel-t flow (AS~M D1238, under a load of 5 kg at 600F) of 30 to 6,000 g/10 minutes, preferably 100 to 3,000 g/10 minutes. ~he particle diameter of the resin powder is not particularly limited, and may be the one convenient for spray coating, for example, 1 to 150 ~, preferably 10 to 100 ~. The poly(phenylene sulfide) powder is commerc.ial].y available, fox example under the designation ~` RY~ON PPS (a trademark for a product of Phillips Pet~oleum ` Co., U. SO ~.)0 In the present in~ention, such a commercially available product can be used.
The colloidal aluminum oxide used in this invention has a primary particle diameter of less than 100 m~. The primary particles denote individual particles which basically constitute the powder, and do not mean secondary particles which are formed by the aggregation of thè
individual primary particlesO ~here is no problem even if the secondary particles ha~e a diameter of more than 100 m~
If the particle diameter of the primary particles of aluminum oxide exceeds 100 m~, the powder coating compo-sition has decreased flowability at the time of coating, 167~4 and gives coa-tings of reduced smoothnessO Hence, pinholes tend to occur in the coated filmsO
The amount of the aluminum oxide powder is 0~05 to 10 parts by weight, preferably 0O3 to 5 parts by weight, per 100 parts by weight of the poly(phenylene sulfide) resin. If the amount is smaller than the lower limit, the effect of the present invention is difficult to expect, and if it exceeds the upper limit, the smoothness of the resulting coated film tends to decrease m e composition of this invention can b~ produced by mixing the poly(phenylene sulfide) powder and the aluminum oxide powder by a suitable mixin~ means such as a supermixer.
Ihe composition of this invention is especially suitable as a paint to be applied by the powder coating method, which is called a powder paint. Generally, paints containing a certain resin to be coated on a substrate are classi~ied into a solvent-soluble paint in which the resin is dissolved in a solvent, a dispersion paint in which the resin is dispersed in a liguid medium to form a slurry, and a powder paint in which the resin is in the form of a powder.
The poly(phenylene sulfide) paint has ~een a~plied usually as a dispersion paintO The composition of this invention, however, can be easily applied as a powder paint, and very ~ good results can be obtainedO ~he powder coating method - 25 includes spray coating, fluidized bed coating, electrostatic poweder coating and plasma spray coatingO The composition of this invention can be applied by any of these specific methods. Known poly(phenylene sulfide resin (PPS for short) compositions properly used in -the form of a slurry in water ~16~74 or another li~uid medium are disclosed, for example, in UO SO Patent 3,776,880 (PPS + selected nitrogeneous organic compounds such as melamine)~ Japanese Patent Publication ~o. ~8689/74 (PPS t ~iO2) and Japanese ~aid-Open Patent Publication NoO 71725/75 (PPS + fluorocarbon resin ~ TiO2)o ~he powder paint has the following advantages over dispersion paintsO
(a) In the case of the powder paint, a thick coating can be formed by one cycle of coating operationO
In the case of the dispersion paint, a thick coating cannot be formed by one coating operation, and the coatin~ must be carried out a number of times until the desired thickness i~ obtained~ Hence, the dispersion paint has poor operabilityO
(b) When the dispersion paint is used, pinholes t~nd to ~orm in tho coated film by t.he volatilization of the liquid medium~ ~hese pinholes cause deterioration of the properties of the coated film, especially hot water resistanceO The occurrence of pinholes could be prevented by carefully controlling the speed of dryingO In practice, however, it is difficul~ to exercise good control all the timeO ~he powder paint, on the other hand, can give superior coated films without involving such a defect or difficultyO
(c~ When the dispersion paint is used to coat the inner surface of a tubular product1 especially a narrow pipe, a coating of uniform thickness is considerably difficult to ob-tain because the slurry flowsO In contrast, when the powder paint is used, a coating of uniform thickness can be easily obtained in such a caseO
One e~ample of the application of the poly(phenylene sulfide) composition of this invention as a powder paint by spray coating is described belowO
~he composition is applied to the desired thickness to the surface of a substrate by an ordinary spraying means such as a spray gun 9 and then baked at a temperature o~
about 3005 to about 450C for a suitable period of time to cure the coatingO Thus, a coated ~ilm can be simply obtained which has good thermal stability, chemical resistance and mechanicàl properties and superior adhesion, especially in hot waterO
Prior to the application of the composition of this invention, a suitable primer :may be applied to the surface to be coated, and this i.s a preferred procedureO
Preferably, the primer is a usual primer composition containing :l5 aluminum powder, for e~ample an aluminum phosphate-type primer containing 50% by weight of aluminum powder~ ~n especially preferred primer is disclosed by the present inventors in Canadian patent application Serial ~o. 285,236. ~his primer coating composition comprises a mixture of more than 50./0 by weight of aluminum powder and less than 50% ~y weight of zinc powder, and at least one Cl 4-alkyl silicate soluble in organic solventsO
Substrates to be coated with the composition of this invention include thermally stable materials such as : 25 metal, glass, ceramics and stoneO Preferably, metals such as iron, copper, aluminum, titanium and chromium or metal allo~s such as steel are used.
Specific obàects to be coa-ted in accordance with this invention are the inner surfaces of pipes, pipe fi-ttings or valves made of steel, cast iron or stainless steel~ These pipes and other articles are useful as water-supplying lines, especially hot water supplying lines~
~ke following Examples and Comparative ~xa~ples illustrate the fact that by using the composition of this invention, a thick coated film can be formed on the surface of a substrate by one cycle of powder coating operation, and the resulting coated film has superior adhesion to the substrate which is not reduced in hot waterO
Exam~les 1 to 3 and Comparative Exam~les 1 and 2 ~bly(phenylene sulfide) resin composition as a powder paint:-The ingredients shown iII Table 1 were fully mixedto prepare compositions in these examplesO The numerical figures in the table refer to par~s by weightO
Table 1 .
__ __ ~
Examples Comparative Ingredients 1 2 3 Examples ~ . . ._ sulfide) resin powder 100 100 100 100 100 Aluminum oxide powder 005 1~0 5~0 _ _ ~ine silica powder _ _ _ _ 1 The poly(phenylene sulfide) resin was RY~ON-PPS P2 (a trademark for a product of Phillips Petroleum CoO); the aluminum oxide was a fine powder with an average primary particle diameter of 20 m~ (AEROSII,C, a trademark for a product of Nippon Aerosil Company); and the silica was a fi~le powder having an average primary particle diameter of 7 m~ (AEROSIL ~380, a trademark for a product of Nippon Aerosil Company)O
Powder coating:- .
An aluminum phosphate-type primer containing 5~/0 by weight of aluminum powder was coated on a steel panel degreased with trichloroethylene, and baked at 400C to form a primer layer having a thickness of about 20~o Each of the compositions shown in ~able 1 was sprayed onto the .-:
primer layer by a spray gun, and then baked at ~80C for 60 minutes to form a coating having a thickness of about 200 ~0 ~he properties of the coated steel panel samples obtained were evaluated, and the results are shown in ~able 20 Table 2 Cross hatch test Crosscut test ~est items U~tr.eated After hot ~e.~ore A~ter water hot water hot water treatment treatment treatment _ ___ . _ ~. _ __ _ _ Example 1 No change No change No change No change 32 ~ '~ ll "
_._ _ _ _. ~
Comparative Partly Entirely Peeled Entirely Example 1 peeled peeled near the peeled : cut line
Fbly(phenylene sulfide) resin has recently been much studied for its capacity of forming coated films havin~
good thermal stability, chemical resistance and mechanical properties. Coated films of the poly(phenylene sulfide) re5in are generally con9idered to have better adhesion to ~ubstrates than those of other resins. In practical appli-cation, however, their adhesion is not sufficient, and particularly in hot water, tends to decrease markedly.
A general method known to improve the adhesion of re~inous coated ~ilms involves blendin~ or OEaftcopolymerizing a compound having a polar group such as an epoxy resin or acrylic acid with a resin. Since a paint film of the poly(phenylene sulfide) resin requires high temperatures and lon~ periods of ~ime for baking, when a paint of the poly(phenylene sulfide) modified by this method is used, the polar organic compound blended or grafted with it will decompose during baking at high temperatures. It is extremely difficult therefore to improve the adhesion of the poly(phePylene sulfide) by this general method. -~
It is an object of this invention therefore to provide a poly(phenylene sulfide) resin composition comprising a powdery poly(phenylene sulfide) resin and an aluminum oxide powder of colloidal size, which gives coated films having superior adhesion even in hot water~
1~ 6~i~9~
Thus, the invention provides a poly(phenylene sulfide) resin composition comprising 100 parts by weight of a poly-(phenylene sulfide) resin powder and 0.05 to 10 parts by weight of an aluminum oxide powder of colloidal size having a particle diameter of less than 100 m~.
-2a-6~7~
The poly(phenylene sulfide) is a resin whose main chain is composed mainly of the recurring unit - ~ -S- in which the phenylene group is optionally substituted by halogen or an alkyl group with 1 to 12 carbon atoms. The resin may have a partially oxidized, branched or cross-linked structureO 'rhe poly(phenylene sulfide) resin and a method for its production are disclosed, for example, in ~T. S. Patent 3,35~,129~ To be suitable as a paint, the resin generally has a melting point of 200 to 350C, preferably 250 to 300C, and a mel-t flow (AS~M D1238, under a load of 5 kg at 600F) of 30 to 6,000 g/10 minutes, preferably 100 to 3,000 g/10 minutes. ~he particle diameter of the resin powder is not particularly limited, and may be the one convenient for spray coating, for example, 1 to 150 ~, preferably 10 to 100 ~. The poly(phenylene sulfide) powder is commerc.ial].y available, fox example under the designation ~` RY~ON PPS (a trademark for a product of Phillips Pet~oleum ` Co., U. SO ~.)0 In the present in~ention, such a commercially available product can be used.
The colloidal aluminum oxide used in this invention has a primary particle diameter of less than 100 m~. The primary particles denote individual particles which basically constitute the powder, and do not mean secondary particles which are formed by the aggregation of thè
individual primary particlesO ~here is no problem even if the secondary particles ha~e a diameter of more than 100 m~
If the particle diameter of the primary particles of aluminum oxide exceeds 100 m~, the powder coating compo-sition has decreased flowability at the time of coating, 167~4 and gives coa-tings of reduced smoothnessO Hence, pinholes tend to occur in the coated filmsO
The amount of the aluminum oxide powder is 0~05 to 10 parts by weight, preferably 0O3 to 5 parts by weight, per 100 parts by weight of the poly(phenylene sulfide) resin. If the amount is smaller than the lower limit, the effect of the present invention is difficult to expect, and if it exceeds the upper limit, the smoothness of the resulting coated film tends to decrease m e composition of this invention can b~ produced by mixing the poly(phenylene sulfide) powder and the aluminum oxide powder by a suitable mixin~ means such as a supermixer.
Ihe composition of this invention is especially suitable as a paint to be applied by the powder coating method, which is called a powder paint. Generally, paints containing a certain resin to be coated on a substrate are classi~ied into a solvent-soluble paint in which the resin is dissolved in a solvent, a dispersion paint in which the resin is dispersed in a liguid medium to form a slurry, and a powder paint in which the resin is in the form of a powder.
The poly(phenylene sulfide) paint has ~een a~plied usually as a dispersion paintO The composition of this invention, however, can be easily applied as a powder paint, and very ~ good results can be obtainedO ~he powder coating method - 25 includes spray coating, fluidized bed coating, electrostatic poweder coating and plasma spray coatingO The composition of this invention can be applied by any of these specific methods. Known poly(phenylene sulfide resin (PPS for short) compositions properly used in -the form of a slurry in water ~16~74 or another li~uid medium are disclosed, for example, in UO SO Patent 3,776,880 (PPS + selected nitrogeneous organic compounds such as melamine)~ Japanese Patent Publication ~o. ~8689/74 (PPS t ~iO2) and Japanese ~aid-Open Patent Publication NoO 71725/75 (PPS + fluorocarbon resin ~ TiO2)o ~he powder paint has the following advantages over dispersion paintsO
(a) In the case of the powder paint, a thick coating can be formed by one cycle of coating operationO
In the case of the dispersion paint, a thick coating cannot be formed by one coating operation, and the coatin~ must be carried out a number of times until the desired thickness i~ obtained~ Hence, the dispersion paint has poor operabilityO
(b) When the dispersion paint is used, pinholes t~nd to ~orm in tho coated film by t.he volatilization of the liquid medium~ ~hese pinholes cause deterioration of the properties of the coated film, especially hot water resistanceO The occurrence of pinholes could be prevented by carefully controlling the speed of dryingO In practice, however, it is difficul~ to exercise good control all the timeO ~he powder paint, on the other hand, can give superior coated films without involving such a defect or difficultyO
(c~ When the dispersion paint is used to coat the inner surface of a tubular product1 especially a narrow pipe, a coating of uniform thickness is considerably difficult to ob-tain because the slurry flowsO In contrast, when the powder paint is used, a coating of uniform thickness can be easily obtained in such a caseO
One e~ample of the application of the poly(phenylene sulfide) composition of this invention as a powder paint by spray coating is described belowO
~he composition is applied to the desired thickness to the surface of a substrate by an ordinary spraying means such as a spray gun 9 and then baked at a temperature o~
about 3005 to about 450C for a suitable period of time to cure the coatingO Thus, a coated ~ilm can be simply obtained which has good thermal stability, chemical resistance and mechanicàl properties and superior adhesion, especially in hot waterO
Prior to the application of the composition of this invention, a suitable primer :may be applied to the surface to be coated, and this i.s a preferred procedureO
Preferably, the primer is a usual primer composition containing :l5 aluminum powder, for e~ample an aluminum phosphate-type primer containing 50% by weight of aluminum powder~ ~n especially preferred primer is disclosed by the present inventors in Canadian patent application Serial ~o. 285,236. ~his primer coating composition comprises a mixture of more than 50./0 by weight of aluminum powder and less than 50% ~y weight of zinc powder, and at least one Cl 4-alkyl silicate soluble in organic solventsO
Substrates to be coated with the composition of this invention include thermally stable materials such as : 25 metal, glass, ceramics and stoneO Preferably, metals such as iron, copper, aluminum, titanium and chromium or metal allo~s such as steel are used.
Specific obàects to be coa-ted in accordance with this invention are the inner surfaces of pipes, pipe fi-ttings or valves made of steel, cast iron or stainless steel~ These pipes and other articles are useful as water-supplying lines, especially hot water supplying lines~
~ke following Examples and Comparative ~xa~ples illustrate the fact that by using the composition of this invention, a thick coated film can be formed on the surface of a substrate by one cycle of powder coating operation, and the resulting coated film has superior adhesion to the substrate which is not reduced in hot waterO
Exam~les 1 to 3 and Comparative Exam~les 1 and 2 ~bly(phenylene sulfide) resin composition as a powder paint:-The ingredients shown iII Table 1 were fully mixedto prepare compositions in these examplesO The numerical figures in the table refer to par~s by weightO
Table 1 .
__ __ ~
Examples Comparative Ingredients 1 2 3 Examples ~ . . ._ sulfide) resin powder 100 100 100 100 100 Aluminum oxide powder 005 1~0 5~0 _ _ ~ine silica powder _ _ _ _ 1 The poly(phenylene sulfide) resin was RY~ON-PPS P2 (a trademark for a product of Phillips Petroleum CoO); the aluminum oxide was a fine powder with an average primary particle diameter of 20 m~ (AEROSII,C, a trademark for a product of Nippon Aerosil Company); and the silica was a fi~le powder having an average primary particle diameter of 7 m~ (AEROSIL ~380, a trademark for a product of Nippon Aerosil Company)O
Powder coating:- .
An aluminum phosphate-type primer containing 5~/0 by weight of aluminum powder was coated on a steel panel degreased with trichloroethylene, and baked at 400C to form a primer layer having a thickness of about 20~o Each of the compositions shown in ~able 1 was sprayed onto the .-:
primer layer by a spray gun, and then baked at ~80C for 60 minutes to form a coating having a thickness of about 200 ~0 ~he properties of the coated steel panel samples obtained were evaluated, and the results are shown in ~able 20 Table 2 Cross hatch test Crosscut test ~est items U~tr.eated After hot ~e.~ore A~ter water hot water hot water treatment treatment treatment _ ___ . _ ~. _ __ _ _ Example 1 No change No change No change No change 32 ~ '~ ll "
_._ _ _ _. ~
Comparative Partly Entirely Peeled Entirely Example 1 peeled peeled near the peeled : cut line
2 ll Almost No change Almost entirely entirely _ ~ peeled peeled ~he cross hatch test was per~ormed by providing cuts on the coating lengthwise and crosswise at intervals of 2 mm, and observing the peeled stateO I~he specimens ~:. ` were either untreated, or dipped ~or 24 hours in hot water at 110Co 1 ~ 6~
The crosscu-t test was performed by providing a crosscut in an untreated specimen so that two lines each measuring about 70 mm in length crossed at an angle of about 45C at the center of the specimen, observing the peeled state, then, dipping the specimen for 24 hours in hot water at 110C, and observing the peeled state of the specimen after dippingO
Comparative Example 4 Dispersion paint:-~he following ingredients were fully mixed in a ball mill to ~orm a dispersion paintO ~he parts ~re by weightO
Poly(phenylene sulfide) resin powder (RYTON PPS ~-1, a tradem~rk for a product of Phillips:Pet;roleum CoO) 100 parts Titanium oxide po~der (Ti.paque-R930, ~ product having a p~rtic,le diameter of 0025 to 0.~ ~, Ishihara Sangyo Ko~o) 33 parts : Surface active agent ~Noigen EA 141, a trademark ~or a product of Daiichi Kogyo Seiyaku KoKo ) 3 parts Water 300 parts Dispersion coating:-~ne same primer as used in -the above Examples was coated on a steel panel de OE eased with trichloroethylene, and baked at 350C to produce a primer layer having a thickness of about 20 ~0 The slurry-like dispersion paint was sprayed onto the surface of the primer layer, dried~ and baked at 330C
for 15 minutes, This operation was repeated seven timesO
Finally, the coating was further baked at 375C for 45 minutes to form a coating having a thickness of about 150 , ~
The cross hatch test and crosscut test were performed on the resulting coated steel panel specimenO The results are shown in Table 30 Table _ _ _ Cross hatch test Crosscut test _ ._____ _ Untreated After hot water Untreated After hot water treatment treatment _ __ _ -_ __ .
Partly Entirely peeled Peeled Entirely peeled peeled near the cut line _ _ __ ._ . ~ ~
The crosscu-t test was performed by providing a crosscut in an untreated specimen so that two lines each measuring about 70 mm in length crossed at an angle of about 45C at the center of the specimen, observing the peeled state, then, dipping the specimen for 24 hours in hot water at 110C, and observing the peeled state of the specimen after dippingO
Comparative Example 4 Dispersion paint:-~he following ingredients were fully mixed in a ball mill to ~orm a dispersion paintO ~he parts ~re by weightO
Poly(phenylene sulfide) resin powder (RYTON PPS ~-1, a tradem~rk for a product of Phillips:Pet;roleum CoO) 100 parts Titanium oxide po~der (Ti.paque-R930, ~ product having a p~rtic,le diameter of 0025 to 0.~ ~, Ishihara Sangyo Ko~o) 33 parts : Surface active agent ~Noigen EA 141, a trademark ~or a product of Daiichi Kogyo Seiyaku KoKo ) 3 parts Water 300 parts Dispersion coating:-~ne same primer as used in -the above Examples was coated on a steel panel de OE eased with trichloroethylene, and baked at 350C to produce a primer layer having a thickness of about 20 ~0 The slurry-like dispersion paint was sprayed onto the surface of the primer layer, dried~ and baked at 330C
for 15 minutes, This operation was repeated seven timesO
Finally, the coating was further baked at 375C for 45 minutes to form a coating having a thickness of about 150 , ~
The cross hatch test and crosscut test were performed on the resulting coated steel panel specimenO The results are shown in Table 30 Table _ _ _ Cross hatch test Crosscut test _ ._____ _ Untreated After hot water Untreated After hot water treatment treatment _ __ _ -_ __ .
Partly Entirely peeled Peeled Entirely peeled peeled near the cut line _ _ __ ._ . ~ ~
Claims (2)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A poly(phenylene sulfide)resin composition comprising 100 parts by weight of a poly(phenylene sulfide)resin powder and 0.05 to 10 parts by weight of an aluminum oxide powder of colloidal size having a particle diameter of less than 100 mµ.
2. The composition of claim 1 wherein the amount of the aluminum oxide powder is 0.3 to 5 parts by weight per 100 parts by weight of the poly(phenylene sulfide) resin powder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6003/77 | 1977-01-21 | ||
| JP52006003A JPS6010547B2 (en) | 1977-01-21 | 1977-01-21 | Polyphenylene sulfide composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1116774A true CA1116774A (en) | 1982-01-19 |
Family
ID=11626560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000295370A Expired CA1116774A (en) | 1977-01-21 | 1978-01-20 | Poly (phenylene sulfide) resin coating composition |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4183840A (en) |
| JP (1) | JPS6010547B2 (en) |
| AU (1) | AU514340B2 (en) |
| CA (1) | CA1116774A (en) |
| DE (1) | DE2802280C3 (en) |
| FR (1) | FR2378067A1 (en) |
| GB (1) | GB1568193A (en) |
| IT (1) | IT1092972B (en) |
| NL (1) | NL177606C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981001409A1 (en) * | 1979-11-16 | 1981-05-28 | Du Pont | Coating of poly(arylene sulfide),fluoropolymer and aluminum flake |
| DE3210873A1 (en) * | 1982-03-24 | 1983-09-29 | Siemens AG, 1000 Berlin und 8000 München | IMPROVING THE PROPERTIES OF SULFURIZED POLYMERS, e.g. POLYPHENYLENE SULFIDE |
| US4711796A (en) * | 1985-01-31 | 1987-12-08 | Phillips Petroleum Company | Poly(arylene sulfide) coating compositions |
| US4898904A (en) * | 1986-11-21 | 1990-02-06 | Phillips Petroleum Company | Method to modify poly(aryle sulfide) resins |
| JPH0759665B2 (en) * | 1987-03-31 | 1995-06-28 | 呉羽化学工業株式会社 | Polyary lentithioether composition |
| JPH0757849B2 (en) * | 1987-06-30 | 1995-06-21 | 大日本塗料株式会社 | Powder coating composition |
| DE69103120T2 (en) * | 1990-10-26 | 1995-03-30 | Furukawa Electric Co Ltd | Polyphenylene sulfide composition for powder coating. |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US312139A (en) * | 1885-02-10 | William mason | ||
| US3622376A (en) * | 1968-08-15 | 1971-11-23 | Phillips Petroleum Co | TiO{11 {0 IN POLY(ARYLENE SULFIDE) FOR COATING COMPOSITION |
| US3562199A (en) * | 1969-02-06 | 1971-02-09 | Phillips Petroleum Co | Annealing of arylene sulfide polymers |
| US3725362A (en) * | 1971-03-08 | 1973-04-03 | Phillips Petroleum Co | Poly(arylene sulfide) composition and method for decreasing the melt flow of poly(arylene sulfide) |
| GB1513727A (en) * | 1974-08-21 | 1978-06-07 | Glacier Metal Co Ltd | Bearing materials |
| GB1513378A (en) * | 1974-09-18 | 1978-06-07 | Glacier Metal Co Ltd | Polyarylene sulphide coatings |
-
1977
- 1977-01-21 JP JP52006003A patent/JPS6010547B2/en not_active Expired
-
1978
- 1978-01-19 DE DE2802280A patent/DE2802280C3/en not_active Expired
- 1978-01-19 AU AU32535/78A patent/AU514340B2/en not_active Expired
- 1978-01-19 NL NLAANVRAGE7800672,A patent/NL177606C/en not_active IP Right Cessation
- 1978-01-20 CA CA000295370A patent/CA1116774A/en not_active Expired
- 1978-01-20 IT IT19488/78A patent/IT1092972B/en active
- 1978-01-20 US US05/870,999 patent/US4183840A/en not_active Expired - Lifetime
- 1978-01-20 GB GB2420/78A patent/GB1568193A/en not_active Expired
- 1978-01-23 FR FR7801748A patent/FR2378067A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| NL177606C (en) | 1985-10-16 |
| US4183840A (en) | 1980-01-15 |
| GB1568193A (en) | 1980-05-29 |
| NL177606B (en) | 1985-05-17 |
| IT7819488A0 (en) | 1978-01-20 |
| FR2378067B1 (en) | 1980-08-22 |
| DE2802280C3 (en) | 1981-06-11 |
| AU3253578A (en) | 1979-07-26 |
| IT1092972B (en) | 1985-07-12 |
| AU514340B2 (en) | 1981-02-05 |
| DE2802280A1 (en) | 1978-07-27 |
| JPS5390364A (en) | 1978-08-09 |
| DE2802280B2 (en) | 1980-10-09 |
| FR2378067A1 (en) | 1978-08-18 |
| NL7800672A (en) | 1978-07-25 |
| JPS6010547B2 (en) | 1985-03-18 |
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